User blog comment:Gelsadra/Is Lady the "ugly duckling" of the trio?/@comment-7738747-20130811230351/@comment-6769189-20150401112540

Just because most non-japanese people don't know the original text doesn't mean that the original isn't the correct version.

Rukia took Ichigos sisters clothes because they fit her and she liked her dresses. Ichigos other sister and Rukia are somewhat stoic and take no non-sense. But Rukia isn't either of his sisters, and dispite some common traits, is still her own person in many ways. As is Trish.

From your point of view, it seems that having any semblence to a family member makes a relationship incestuous.